MAST QUADRANT 可扩张管下单侧椎弓根钉置入与椎体间融合治疗腰椎退变性疾病

背景：腰椎后路椎体间融合治疗腰椎退变性疾病,能够恢复椎间隙高度、维持腰椎生理前凸、提供腰椎的即刻稳定性及取得较高的椎间骨性融合率。 目的：验证运用MAST QUADRANT 可扩张管通道微创系统行单侧椎弓根钉置入并椎体间融合治疗腰椎退变性疾病的适应证及有效性。 方法：在3.0 cm的微创切口内放置MAST QUADRANT可扩张管,应用单侧椎弓根钉内固定加椎体间融合治疗腰椎退变性疾病患者32例。 结果与结论：患者置入内固过程中未发生硬膜囊撕裂、神经根和大血管等副损伤。随访3个月以上。置入3个月后JOA评分明显高于置入前(P < 0.01),目测类比评分显著低于置入前(P < 0.01)。X射线片显示椎间隙骨密度均逐渐增加,未发现椎间融合器移位、假关节、内固定松脱或折断等并发症,亦无炎症、过敏等不良反应。

Recent clinical observation in treatment of lumbar degenerative diseases with posterior lumbar interbody fusion cage and pedicle screw fixation under MAST QUADRANT expansive pipe

BACKGROUND:Posterior lumbar interbody fusion for lumbar degenerative disease can restore disc height, maintain the lumbar lordosis, provide immediate stability for the lumbar spine and achieve a higher rate of interbody bone fusion. OBJECTIVE:To explore the indications, surgical techniques and early curative effects in treatment of lumbar degenerative diseases with posterior lumbar interbody fusion cage and pedicle screw fixation under MAST QUADRANT expansive pipe. METHODS:Thirty-two cases suffering from lumbar degenerative diseases were treated by posterior lumbar interbody fusion cage and unilateral pedicle screw fixation with MAST QUADRANT expansive pipe which was placed in 3.0 cm minimally invasive incision. RESULTS AND CONCLUSION: There were no epidural capsule tear, injury of nerve root and great vessels after reatment. Postoperative follow-up continued over 3 months. Compared with preoperation, JOA score difference had statistical significance at 3 months after operation (P < 0.01). VAS score difference also had statistical significance at 3 months after operation (P < 0.01). Bone density on intervertebral space increased gradually on x-ray photograph. Complications including cage displacement, pseudarthrosis and internal fixation loosening did not occur.